JPH09192496A - Photocatalyst and self-cleaning articles having the same - Google Patents
Photocatalyst and self-cleaning articles having the sameInfo
- Publication number
- JPH09192496A JPH09192496A JP8003960A JP396096A JPH09192496A JP H09192496 A JPH09192496 A JP H09192496A JP 8003960 A JP8003960 A JP 8003960A JP 396096 A JP396096 A JP 396096A JP H09192496 A JPH09192496 A JP H09192496A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- self
- cleaning product
- toilet
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 74
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 239000002019 doping agent Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000746 purification Methods 0.000 claims abstract description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 7
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001930 tungsten oxide Inorganic materials 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 241001465754 Metazoa Species 0.000 claims abstract description 6
- 239000004566 building material Substances 0.000 claims abstract description 6
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 6
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010411 cooking Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 241000251468 Actinopterygii Species 0.000 claims description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 235000009566 rice Nutrition 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 244000269722 Thea sinensis Species 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 2
- 244000144972 livestock Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract 1
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000001699 photocatalysis Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 230000001678 irradiating effect Effects 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical group [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光触媒及びそれを
備えた自己清浄品に関する。TECHNICAL FIELD The present invention relates to a photocatalyst and a self-cleaning article provided with the photocatalyst.
【０００２】[0002]
【従来の技術】従来、光触媒として用いられているもの
は、酸化チタン、酸化亜鉛、チタン酸ストロンチウム、
酸化タングステン、炭化珪素からなるもの単独で使用さ
れている。中でもほとんどの場合酸化チタンが使用され
ている。酸化チタンを用いた場合、光触媒活性に利用で
きる光の波長は、例えば、３５６ｎｍ程度の近紫外線で
あり、利用範囲が限られているという欠点があった。し
たがって、３６０〜８３０ｎｍ程度の可視光によっても
光触媒活性となる光触媒及びこの光触媒を例えば、生活
空間の浄化に利用した、光触媒を備えた自己清浄品の開
発が望まれていた。2. Description of the Related Art Conventionally, those used as photocatalysts are titanium oxide, zinc oxide, strontium titanate,
It is used by itself consisting of tungsten oxide and silicon carbide. Most of the time, titanium oxide is used. When titanium oxide is used, the wavelength of light that can be used for photocatalytic activity is, for example, near-ultraviolet light having a wavelength of about 356 nm, which has a drawback that the range of use is limited. Therefore, it has been desired to develop a photocatalyst that becomes photocatalytically active even with visible light of about 360 to 830 nm and a self-cleaning product equipped with the photocatalyst, which uses the photocatalyst for purification of living space.
【０００３】[0003]
【発明が解決しようとする課題】本発明は前記の事実に
鑑みてなされたもので、その目的とするところは、可視
光の利用効率を高め、光触媒活性を高めた光触媒及びこ
の光触媒を備えた生活空間の浄化に利用する自己清浄品
を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and an object of the present invention is to provide a photocatalyst having an improved utilization efficiency of visible light and an increased photocatalytic activity, and a photocatalyst. It is to provide self-cleaning products that are used to purify living spaces.
【０００４】[0004]
【課題を解決するための手段】本発明の請求項１に係る
光触媒は、酸化チタン、酸化亜鉛、チタン酸ストロンチ
ウム、酸化タングステン及び炭化珪素からなる群より選
択される少なくとも一種類に、バナジウム、クロム、マ
ンガン、鉄、コバルト、ニッケル及び銅からなる群より
選択される少なくとも一種類のドーパントがドーピング
されていることを特徴とする。The photocatalyst according to claim 1 of the present invention comprises at least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide, vanadium and chromium. It is characterized in that it is doped with at least one kind of dopant selected from the group consisting of manganese, iron, cobalt, nickel and copper.
【０００５】本発明の請求項２に係る光触媒は、前記ド
ーパントのドーピング量が光触媒全量に対して５００ｐ
ｐｂ〜５００ｐｐｍであることを特徴とする。In the photocatalyst according to claim 2 of the present invention, the doping amount of the dopant is 500 p based on the total amount of the photocatalyst.
It is characterized by being pb-500 ppm.
【０００６】本発明の請求項３に係る自己清浄品は、請
求項１又は請求項２記載の光触媒を備えていることを特
徴とする。A self-cleaning product according to claim 3 of the present invention is characterized by comprising the photocatalyst according to claim 1 or 2.
【０００７】本発明の請求項４に係る自己清浄品は、前
記自己清浄品が照明器具、レンジフード、キッチン周り
品、トイレ周り品、浴室周り品、収納具、建材、寝具、
カーテン、じゅうたん、家電製品、調理器具、食器、自
動車、自転車、携帯品、衣類、浄化設備、水槽又は動物
用品であり、これら自体又はこれらの部品の表面若しく
は内面に前記光触媒を備えていることを特徴とする。In the self-cleaning product according to claim 4 of the present invention, the self-cleaning product is a lighting fixture, a range hood, a kitchen-related product, a toilet-related product, a bathroom-related product, a storage tool, a building material, a bedding,
Curtains, rugs, home appliances, cooking utensils, tableware, automobiles, bicycles, portable items, clothes, purification equipment, aquariums or animal products, which are provided with the photocatalyst itself or on the surface or inside of these parts. Characterize.
【０００８】本発明の請求項５に係る自己清浄品は、前
記照明器具が反射板、カバー又は傘部、前記レンジフー
ドがフィルター、フード又はファン部、前記キッチン周
り品がテーブル、食器棚、壁、タイル又は天井部、前記
トイレ周り品が壁、便座又は便器、前記浴室周り品が浴
槽、壁、タイル部又は天井部、前記収納具が下駄箱、押
入、タンス、床下収納庫、米櫃、クーラーボックス又は
ごみ箱、前記建材が外装材、レンガ、間仕切り、ふす
ま、障子又は床、前記寝具がふとん、まくら又は毛布、
前記家電製品がテレビ、ビデオ、ステレオ、クーラー、
ストーブ、掃除機、洗濯機、冷蔵庫、電気ポット、こた
つ、炊飯器、シェーバー、むだ毛剃り器又はドライヤ
ー、前記調理器具がなべ、茶瓶又はフライパン、前記食
器がコップ、茶碗又はどんぶり鉢、前記自動車が窓ガラ
ス又はハンドル、前記携帯品が帽子、バッグ、時計、釣
竿、靴、入れ歯又はコンタクトレンズ、前記衣類が制
服、背広、靴下、下着、コート、ジャンバー、セータ
ー、トレーナー、ワイシャツ、ズボン、着物、スカー
ト、ストッキング又はタイツ、前記浄化設備が排水処理
設備、浄化槽、空気浄化器、水浄化器又は生ゴミ処理
器、前記水槽がプール、観賞魚用水槽、生けす用水槽又
は池作り用石、前記動物用品がペット小屋、犬小屋又は
鳥かごであることを特徴とする。In the self-cleaning article according to claim 5 of the present invention, the lighting equipment is a reflector, a cover or an umbrella section, the range hood is a filter, a hood or a fan section, and the kitchen accessories are a table, a cupboard, or a wall. , Tiles or ceilings, the toilet accessories are walls, toilet seats or toilets, the bathroom accessories are bathtubs, walls, tiles or ceilings, the storage devices are shoeboxes, closets, closets, underfloor storage, rice bowls, Cooler box or trash can, the building material is exterior material, brick, partition, bran, shoji or floor, the bedding is a futon, pillow or blanket,
The home appliances are TV, video, stereo, cooler,
Stove, vacuum cleaner, washing machine, refrigerator, electric kettle, kotatsu, rice cooker, shaver, waste shaving device or dryer, the cooking utensil, tea jar or frying pan, the tableware is a cup, bowl or bowl, the car is Window glasses or handles, the portable items are hats, bags, watches, fishing rods, shoes, dentures or contact lenses, the clothing is uniforms, suits, socks, underwear, coats, jumpers, sweaters, trainers, shirts, pants, kimonos, skirts. , Stockings or tights, the purification equipment is a wastewater treatment equipment, a septic tank, an air purifier, a water purifier or a garbage disposal, the aquarium is a pool, an ornamental fish tank, a live fish tank or a pond making stone, the animal It is characterized in that the article is a pet house, a dog house or a birdcage.
【０００９】[0009]
【発明の実施の形態】以下に本発明を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【００１０】本発明に係る光触媒は、酸化チタン、酸化
亜鉛、チタン酸ストロンチウム、酸化タングステン及び
炭化珪素からなる群より選択される少なくとも一種類を
主成分とすることが必要である。さらに、この主成分に
加えて、バナジウム、クロム、マンガン、鉄、コバル
ト、ニッケル及び銅からなる群より選択される少なくと
も一種類のドーパントがドーピングされていることが必
要である。この光触媒は、可視光の利用効率を高め、光
触媒活性を高めた光触媒となる。The photocatalyst according to the present invention must contain at least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide as a main component. Further, in addition to this main component, it is necessary to dope at least one kind of dopant selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel and copper. This photocatalyst is a photocatalyst with improved utilization efficiency of visible light and enhanced photocatalytic activity.
【００１１】本発明に係る光触媒の前記主成分にドーピ
ングする前記ドーパントのドーピング量は、光触媒全量
に対して５００ｐｐｂ〜５００ｐｐｍ（重量比）である
ことが好ましい。The doping amount of the dopant for doping the main component of the photocatalyst according to the present invention is preferably 500 ppb to 500 ppm (weight ratio) with respect to the total amount of the photocatalyst.
【００１２】前記光触媒の合成方法は、酸化チタン、酸
化亜鉛、チタン酸ストロンチウム、酸化タングステン及
び炭化珪素からなる群より選択される少なくとも一種類
又はこれらの前駆体、例えば、水酸化物、塩化物、硝酸
塩、ゾル等にバナジウム、クロム、マンガン、鉄、コバ
ルト、ニッケル及び銅からなる群より選択される少なく
とも一種類又はこれらの前駆体、例えば、塩化物、硝酸
塩等を例えば、光触媒全量に対して５００ｐｐｂ〜５０
０ｐｐｍ程度の微量を添加して、乾燥し、場合によって
は焼成して、光触媒を得る。The method for synthesizing the photocatalyst includes at least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide or a precursor thereof, for example, a hydroxide, a chloride, At least one kind selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel and copper or a precursor thereof, for example, chloride, nitrate, etc. for nitrate, sol, etc., for example, 500 ppb with respect to the total amount of photocatalyst. ~ 50
A photocatalyst is obtained by adding a trace amount of about 0 ppm, drying and optionally calcining.
【００１３】この光触媒を備えることにより、自己清浄
品となる。光触媒を自己清浄品に形成する方法として
は、担持、塗布又は蒸着等が挙げられ、自己清浄品の表
面に実用に耐えうる強度で形成できれば、いずれの方法
でもよく、その方法は限定されない。例えば、光触媒を
塗布あるいは蒸着する方法としては、真空蒸着法、ディ
ップ法、ＣＶＤ法、熱ＣＶＤ法、スパッタ法又はゾル−
ゲル法等が挙げられる。光触媒の担持方法としては、塗
料やバインダーを塗布した後に、光触媒を吹き付ける方
法又は塗料やバインダー中に光触媒を混入させて吹き付
ける方法等が挙げられるが、これらの方法に限られるわ
けではない。By providing this photocatalyst, a self-cleaning product is obtained. Examples of the method for forming the photocatalyst in the self-cleaning product include supporting, coating and vapor deposition, and any method may be used as long as it can be formed on the surface of the self-cleaning product with a strength that can be practically used, and the method is not limited. For example, as a method of coating or vapor depositing a photocatalyst, a vacuum vapor deposition method, a dipping method, a CVD method, a thermal CVD method, a sputtering method or a sol-
A gel method and the like can be mentioned. Examples of the method of supporting the photocatalyst include, but are not limited to, a method of spraying the photocatalyst after coating the paint or the binder, a method of mixing the photocatalyst in the paint or the binder and spraying the photocatalyst.
【００１４】生活空間で使用するもので例えば、器具、
機器、設備、生活用品等で、油等の有機汚れ等が付き易
い部位等の表面に、前記光触媒が形成されたものを自己
清浄品と称する。この自己清浄品は、表面に光触媒が形
成されているので、この光触媒により、自己清浄品の表
面の汚れが分解されるため、自己清浄品の表面が常にき
れいな状態に保たれる。すなわち、光触媒を自己清浄品
の表面に存在させることにより、自己清浄品に付着し
た、例えば、油等の汚れを、紫外線のみでなく３６０〜
８３０ｎｍ程度の可視光等の光により光触媒が活性化
し、前記汚れを酸化分解して清浄化するわけである。ま
た、光触媒の活性化により、水質等を清浄化することが
可能であり、例えば、ＴＯＣを小さくすることができ
る。Used in a living space, for example, equipment,
A self-cleaning product is one in which the photocatalyst is formed on the surface of a portion or the like of an appliance, a facility, a household item, etc., where organic stains such as oil tend to adhere. Since the photocatalyst is formed on the surface of this self-cleaning product, the photocatalyst decomposes dirt on the surface of the self-cleaning product, so that the surface of the self-cleaning product is always kept clean. That is, by allowing the photocatalyst to be present on the surface of the self-cleaning product, stains such as oil attached to the self-cleaning product are not limited to ultraviolet rays but 360 to 360.
The photocatalyst is activated by light such as visible light of about 830 nm, and the dirt is oxidatively decomposed and cleaned. Further, by activating the photocatalyst, it is possible to clean water quality and the like, and for example, TOC can be reduced.
【００１５】前記自己清浄品としては、例えば、照明器
具として反射板、カバー若しくは傘部、レンジフードと
してフィルター、フード若しくはファン部、キッチン周
り品としてテーブル、食器棚、壁、タイル若しくは天井
部、トイレ周り品として壁、便座若しくは便器、浴室周
り品として浴槽、壁、タイル部若しくは天井部、収納具
として下駄箱、押入、タンス、床下収納庫、米櫃、クー
ラーボックス若しくはごみ箱、建材として外装材、レン
ガ、間仕切り、ふすま、障子若しくは床、寝具としてふ
とん、まくら若しくは毛布、カーテン、じゅうたん、家
電製品としてテレビ、ビデオ、ステレオ、クーラー、ス
トーブ、掃除機、洗濯機、冷蔵庫、電気ポット、こた
つ、炊飯器、シェーバー、むだ毛剃り器若しくはドライ
ヤー、調理器具としてなべ、茶瓶若しくはフライパン、
食器としてコップ、茶碗若しくはどんぶり鉢、自動車と
して窓ガラス若しくはハンドル、自転車、携帯品として
帽子、バッグ、時計、釣竿、靴、入れ歯若しくはコンタ
クトレンズ、衣類として制服、背広、靴下、下着、コー
ト、ジャンバー、セーター、トレーナー、ワイシャツ、
ズボン、着物、スカート、ストッキング若しくはタイ
ツ、浄化設備として排水処理設備、浄化槽、空気浄化
器、水浄化器若しくは生ゴミ処理器、水槽としてプー
ル、観賞魚用水槽、生けす用水槽若しくは池作り用石又
は動物用品としてペット小屋、犬小屋若しくは鳥かご等
自体又はこれらの部品の表面若しくは内面に前記光触媒
が形成されているもの等が挙げられる。前記部品とは、
例えば、シェーバー、むだ毛剃り器についていうと、そ
の歯等が挙げられる。Examples of the self-cleaning product include a reflector as a lighting device, a cover or an umbrella part, a filter as a range hood, a hood or a fan part, a table as a kitchen accessory, a cupboard, a wall, a tile or a ceiling part, a toilet. Accessories such as walls, toilet seats or toilets, bathroom accessories such as bathtubs, walls, tiles or ceilings, storage boxes such as shoe boxes, closets, closets, underfloor storage, rice shavings, cooler boxes or trash cans, exterior materials as building materials, Brick, partition, bran, shoji or floor, bedding as futon, pillow or blanket, curtain, carpet, household appliances as TV, video, stereo, cooler, stove, vacuum cleaner, washing machine, refrigerator, electric kettle, kotatsu, rice cooker , Shaver, waste shave or dryer, cookware Pot, teapot or frying pan,
Cups, bowls or bowls as tableware, window glasses or handles as automobiles, bicycles, hats, bags, watches, fishing rods, shoes, dentures or contact lenses as clothing, uniforms, suits, socks, underwear, coats, jumpers, as clothing. Sweater, sweatshirt, shirt,
Trousers, kimono, skirt, stockings or tights, wastewater treatment equipment as a purification equipment, septic tank, air purifier, water purifier or garbage disposal, pool as aquarium, aquarium for aquarium fish, aquarium for aquarium or stone for pond making Alternatively, examples of animal products include pet sheds, dog sheds, bird cages, and the like, or those in which the photocatalyst is formed on the surface or the inner surface thereof. The parts are
For example, in the case of a shaver and a shaver, its teeth and the like can be mentioned.
【００１６】[0016]
【実施例】以下、本発明を実施例により具体的に説明す
る。The present invention will be described below in more detail with reference to examples.
【００１７】以下に、この発明の具体的な実施例及び比
較例を示すが、この発明は、下記実施例に限定されるも
のではない。Specific examples and comparative examples of the present invention will be shown below, but the present invention is not limited to the following examples.
【００１８】（実施例１）チタン酸イソプロポキシドに
硝酸を加え、加水分解、重合及び解膠反応させ、塩化ク
ロムを加えて、クロムがドーピングされた酸化チタン光
触媒を得た。酸化チタンに対するクロムの量は５０ｐｐ
ｍ（ｇ／ｇ）であった。このようにして得られた光触媒
活性膜の性能評価を次のようにして行った。光触媒０．
１ｇを３００ｃｃの容器に形成し、容器内の濃度が約５
０ｐｐｍになるようにアセトアルデヒドを注入して、蛍
光灯８Ｗを照射し、アセトアルデヒドの半減期を測定す
ることにより光触媒性能を評価した。その結果、半減期
は約１．５時間であった。Example 1 Nitric acid was added to isopropoxide titanate to cause hydrolysis, polymerization and peptization reaction, and chromium chloride was added to obtain a titanium oxide photocatalyst doped with chromium. The amount of chromium to titanium oxide is 50 pp
It was m (g / g). The performance of the photocatalytically active film thus obtained was evaluated as follows. Photocatalyst 0.
1g is formed into a 300cc container, and the concentration in the container is about 5
Photocatalytic performance was evaluated by injecting acetaldehyde to 0 ppm, irradiating a fluorescent lamp 8W, and measuring the half-life of acetaldehyde. As a result, the half-life was about 1.5 hours.
【００１９】（実施例２）実施例１で得られた光触媒５
０重量部を無機塗料５０重量部に加え、レンジフードの
フード部に塗布し、光触媒担持レンジフードを得た。こ
のようにして得られた光触媒活性膜の性能評価を次のよ
うにして行った。この光触媒形成レンジフードを５ｃｍ
×５ｃｍに切り取り、油を０．１ｍｇ／ｃｍ2 で塗布
し、蛍光灯８Ｗを照射して、油の半減期を測定すること
により光触媒性能を評価した。その結果、半減期は約６
時間であった。(Example 2) Photocatalyst 5 obtained in Example 1
0 part by weight was added to 50 parts by weight of the inorganic paint and applied to the hood part of the range hood to obtain a photocatalyst-supporting range hood. The performance of the photocatalytically active film thus obtained was evaluated as follows. This photocatalyst forming range hood is 5 cm
The photocatalytic performance was evaluated by cutting out to 5 cm, applying oil at 0.1 mg / cm 2 , irradiating with a fluorescent lamp 8 W, and measuring the half-life of the oil. As a result, the half-life is about 6
It was time.
【００２０】（実施例３）実施例１において、塩化クロ
ムに代えて、塩化鉄を加えた以外は、実施例１と同様に
して、酸化チタンに対する鉄の量が５０ｐｐｍ（ｇ／
ｇ）である鉄がドーピングされた酸化チタン光触媒を得
た。この光触媒７０重量部を無機塗料３０重量部に加
え、クーラーボックスの内側に担持した光触媒担持クー
ラーボックスを得た。この光触媒形成クーラーボックス
の内壁面を５ｃｍ×５ｃｍに切り取り、３００ｃｃの容
器に設置し、容器内の濃度が約５０ｐｐｍになるように
アセトアルデヒドを注入して、蛍光灯８Ｗを照射し、ア
セトアルデヒドの半減期を測定することにより光触媒性
能を評価した。その結果、半減期は約３時間であった。(Example 3) In Example 1, except that iron chloride was added instead of chromium chloride, the amount of iron relative to titanium oxide was 50 ppm (g / g).
g) an iron-doped titanium oxide photocatalyst was obtained. 70 parts by weight of this photocatalyst was added to 30 parts by weight of the inorganic coating material to obtain a photocatalyst-supporting cooler box supported inside the cooler box. The inner wall surface of this photocatalyst formation cooler box is cut into 5 cm × 5 cm, placed in a 300 cc container, acetaldehyde is injected so that the concentration in the container is about 50 ppm, and the fluorescent lamp 8W is irradiated to obtain a half-life of acetaldehyde. Was evaluated to evaluate the photocatalytic performance. As a result, the half-life was about 3 hours.
【００２１】（実施例４）実施例３で得た光触媒２０重
量部を無機塗料８０重量部に加え、背広の表地に担持し
た。この光触媒形成背広を５ｃｍ×５ｃｍに切り取り、
油を０．１ｍｇ／ｃｍ2 で塗布し、蛍光灯８Ｗを照射し
て、油の半減期を測定することにより光触媒性能を評価
した。その結果、半減期は約１０時間であった。(Example 4) 20 parts by weight of the photocatalyst obtained in Example 3 was added to 80 parts by weight of the inorganic coating material, and the inorganic coating material was supported on a suit surface. Cut this photocatalyst-formed suit into 5 cm x 5 cm,
The photocatalytic performance was evaluated by applying oil at 0.1 mg / cm 2 and irradiating a fluorescent lamp 8W to measure the half-life of the oil. As a result, the half-life was about 10 hours.
【００２２】（実施例５）実施例３で得た光触媒６０重
量部を無機塗料４０重量部に加え、排水処理設備の内表
面に塗布するとともに、光触媒を形成した内表面に光を
照射するため、排水処理設備の内部に高圧水銀ランプ
（３００Ｗ）を配置して、光触媒が形成された排水処理
設備を得た。この排水処理設備（５リットル）に、模擬
排水（ＴＯＣ１３０ｍｇ／リットル）を３リットル入れ
て、高圧水銀ランプを３時間照射した結果、ＴＯＣは３
０ｍｇ／リットルになった。(Example 5) To add 60 parts by weight of the photocatalyst obtained in Example 3 to 40 parts by weight of the inorganic coating material and apply it to the inner surface of the waste water treatment facility, and to irradiate the inner surface having the photocatalyst with light A high-pressure mercury lamp (300 W) was placed inside the wastewater treatment equipment to obtain a wastewater treatment equipment on which a photocatalyst was formed. 3 liters of simulated waste water (TOC 130 mg / liter) was put into this waste water treatment facility (5 liters), and the high-pressure mercury lamp was irradiated for 3 hours. As a result, the TOC was 3
It became 0 mg / liter.
【００２３】（実施例６）実施例１で得た光触媒５０重
量部を無機塗料５０重量部に加え、コージェライト製の
ハニカムに塗布し、光触媒を担持して、光触媒担持ハニ
カムを得た。この光触媒担持ハニカムとブラックライト
（１０Ｗ）とを空気清浄器の通風経路に配置し、光触媒
を備えた空気清浄器を得た。前記光触媒担持ハニカムを
５ｃｍ×５ｃｍに切り取り、３００ｃｃの容器に設置
し、容器内の濃度が約５０ｐｐｍになるようにアセトア
ルデヒドを注入して、蛍光灯８Ｗを照射し、アセトアル
デヒドの半減期を測定することにより光触媒性能を評価
した。その結果、半減期は約３時間であった。(Example 6) 50 parts by weight of the photocatalyst obtained in Example 1 was added to 50 parts by weight of the inorganic coating material and coated on a cordierite honeycomb to carry a photocatalyst to obtain a photocatalyst-supporting honeycomb. The honeycomb supporting the photocatalyst and the black light (10 W) were placed in the ventilation path of the air cleaner to obtain an air cleaner equipped with the photocatalyst. Cut the photocatalyst-supporting honeycomb into 5 cm × 5 cm, install it in a 300 cc container, inject acetaldehyde so that the concentration in the container is about 50 ppm, irradiate with a fluorescent lamp 8 W, and measure the half-life of acetaldehyde. The photocatalytic performance was evaluated by. As a result, the half-life was about 3 hours.
【００２４】（実施例７）実施例６において、実施例１
で得た光触媒に代えて、実施例３で得た光触媒を用いた
以外は、実施例６と同様にして、光触媒担持ハニカムを
得た。この光触媒担持ハニカムとブラックライト（１０
Ｗ）とを浄水器の注水経路に配置し、光触媒を備えた浄
水器を得た。前記光触媒担持ハニカムを５ｃｍ×５ｃｍ
に切り取り、３００ｃｃの容器に設置し、容器内の濃度
が約５０ｐｐｂになるようにクロロホルムを注入して、
蛍光灯８Ｗを照射し、クロロホルムの半減期を測定する
ことにより光触媒性能を評価した。その結果、半減期は
約５時間であった。(Embodiment 7) In Embodiment 6, Embodiment 1
A photocatalyst-supporting honeycomb was obtained in the same manner as in Example 6 except that the photocatalyst obtained in Example 3 was used instead of the photocatalyst obtained in 2. This photocatalyst-supporting honeycomb and black light (10
And W) were arranged in the water injection path of the water purifier to obtain a water purifier equipped with a photocatalyst. The photocatalyst supporting honeycomb is 5 cm × 5 cm
Cut into pieces, place in a 300 cc container, and inject chloroform so that the concentration in the container is about 50 ppb,
The photocatalytic performance was evaluated by irradiating a fluorescent lamp 8W and measuring the half-life of chloroform. As a result, the half-life was about 5 hours.
【００２５】（実施例８）実施例３で得た光触媒３０重
量部を無機塗料７０重量部に加え、観賞魚用水槽の内壁
に塗布し、光触媒が形成された観賞魚用水槽を得た。こ
の光触媒が形成された観賞魚用水槽の内壁を５ｃｍ×５
ｃｍに切り取り、油を０．１ｍｇ／ｃｍ2で塗布し、蛍
光灯８Ｗを照射して、油の半減期を測定することにより
光触媒性能を評価した。その結果、半減期は約８時間で
あった。(Example 8) 30 parts by weight of the photocatalyst obtained in Example 3 was added to 70 parts by weight of the inorganic paint and applied to the inner wall of the aquarium fish tank to obtain an aquarium fish tank on which the photocatalyst was formed. The inner wall of the aquarium for fish with this photocatalyst is 5 cm x 5
The photocatalytic performance was evaluated by cutting into cm, applying oil at 0.1 mg / cm 2 , irradiating with a fluorescent lamp 8 W, and measuring the half-life of the oil. As a result, the half-life was about 8 hours.
【００２６】（比較例２乃至比較例８）実施例２乃至実
施例８において、光触媒を備えない以外は、実施例２乃
至実施例８と同様にして、アセトアルデヒド、クロロホ
ルム、油、ＴＯＣ等の分解度合いを測定したが、実施例
２乃至実施例８の半減期経過後であっても、ほとんど分
解されていなかった。(Comparative Examples 2 to 8) Decomposition of acetaldehyde, chloroform, oil, TOC and the like in the same manner as in Examples 2 to 8 except that no photocatalyst was provided in Examples 2 to 8. The degree was measured, but it was scarcely decomposed even after the half-lives of Examples 2 to 8 had passed.
【００２７】以上の結果、実施例は比較例に比べて、自
己洗浄効果があり、可視光の利用効率を高め、光触媒活
性を高めた光触媒であり、この光触媒を備えることによ
って、生活空間の浄化に有効な自己清浄品になることが
確認できた。As a result of the above, the Example is a photocatalyst having a self-cleaning effect, a higher utilization efficiency of visible light, and a higher photocatalytic activity as compared with the Comparative Example. By including this photocatalyst, the living space is purified. It was confirmed that the product becomes a self-cleaning product effective for.
【００２８】[0028]
【発明の効果】本発明の請求項１又は請求項２に係る光
触媒は、酸化チタン、酸化亜鉛、チタン酸ストロンチウ
ム、酸化タングステン及び炭化珪素からなる群より選択
される少なくとも一種類に、バナジウム、クロム、マン
ガン、鉄、コバルト、ニッケル及び銅からなる群より選
択される少なくとも一種類のドーパントがドーピングさ
れているので、本発明の請求項１又は請求項２に係る光
触媒によると、紫外線のみでなく可視光によっても、活
性化される。The photocatalyst according to claim 1 or 2 of the present invention comprises at least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide, vanadium and chromium. Since the photocatalyst according to claim 1 or 2 of the present invention is doped with at least one kind of dopant selected from the group consisting of, manganese, iron, cobalt, nickel and copper, it is visible as well as ultraviolet light. It is also activated by light.
【００２９】本発明の請求項３乃至請求項５に係る自己
清浄品は、光触媒を備えているので、自己清浄品に付着
した汚れを酸化分解して清浄化するため、本発明の請求
項３乃至請求項５に係る自己清浄品によると、表面を清
浄に保ち、生活空間の浄化に有効である。Since the self-cleaning product according to any one of claims 3 to 5 of the present invention is provided with a photocatalyst, the stains adhering to the self-cleaning product are oxidatively decomposed and cleaned. The self-cleaning product according to claim 5 keeps the surface clean and is effective in purifying the living space.
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 23/34 Ｂ０１Ｊ 23/34 Ｍ 23/70 23/70 Ｍ 23/745 23/80 Ｍ 23/80 23/85 Ｍ 23/85 27/224 Ｍ 27/224 23/74 ３０１Ｍ Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI Technical display location B01J 23/34 B01J 23/34 M 23/70 23/70 M 23/745 23/80 M 23/80 23 / 85 M 23/85 27/224 M 27/224 23/74 301M
Claims (5)
ンチウム、酸化タングステン及び炭化珪素からなる群よ
り選択される少なくとも一種類に、バナジウム、クロ
ム、マンガン、鉄、コバルト、ニッケル及び銅からなる
群より選択される少なくとも一種類のドーパントがドー
ピングされていることを特徴とする光触媒。1. At least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide, selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel and copper. A photocatalyst which is doped with at least one kind of dopant.
全量に対して５００ｐｐｂ〜５００ｐｐｍであることを
特徴とする請求項１記載の光触媒。2. The photocatalyst according to claim 1, wherein the doping amount of the dopant is 500 ppb to 500 ppm with respect to the total amount of the photocatalyst.
えていることを特徴とする自己清浄品。3. A self-cleaning article comprising the photocatalyst according to claim 1 or 2.
ド、キッチン周り品、トイレ周り品、浴室周り品、収納
具、建材、寝具、カーテン、じゅうたん、家電製品、調
理器具、食器、自動車、自転車、携帯品、衣類、浄化設
備、水槽又は動物用品であり、これら自体又はこれらの
部品の表面若しくは内面に前記光触媒を備えていること
を特徴とする請求項３記載の自己清浄品。4. The self-cleaning product is a lighting fixture, a range hood, a kitchen accessory, a toilet accessory, a bathroom accessory, a storage tool, a building material, bedding, a curtain, a carpet, a home electric appliance, a cookware, tableware, a car, a bicycle. 4. The self-cleaning product according to claim 3, wherein the self-cleaning product is a portable product, clothes, purification equipment, a water tank, or animal products, and the photocatalyst is provided on the surface or the inner surface of itself or these parts.
部、前記レンジフードがフィルター、フード又はファン
部、前記キッチン周り品がテーブル、食器棚、壁、タイ
ル又は天井部、前記トイレ周り品が壁、便座又は便器、
前記浴室周り品が浴槽、壁、タイル部又は天井部、前記
収納具が下駄箱、押入、タンス、床下収納庫、米櫃、ク
ーラーボックス又はごみ箱、前記建材が外装材、レン
ガ、間仕切り、ふすま、障子又は床、前記寝具がふと
ん、まくら又は毛布、前記家電製品がテレビ、ビデオ、
ステレオ、クーラー、ストーブ、掃除機、洗濯機、冷蔵
庫、電気ポット、こたつ、炊飯器、シェーバー、むだ毛
剃り器又はドライヤー、前記調理器具がなべ、茶瓶又は
フライパン、前記食器がコップ、茶碗又はどんぶり鉢、
前記自動車が窓ガラス又はハンドル、前記携帯品が帽
子、バッグ、時計、釣竿、靴、入れ歯又はコンタクトレ
ンズ、前記衣類が制服、背広、靴下、下着、コート、ジ
ャンバー、セーター、トレーナー、ワイシャツ、ズボ
ン、着物、スカート、ストッキング又はタイツ、前記浄
化設備が排水処理設備、浄化槽、空気浄化器、水浄化器
又は生ゴミ処理器、前記水槽がプール、観賞魚用水槽、
生けす用水槽又は池作り用石、前記動物用品がペット小
屋、犬小屋又は鳥かごであることを特徴とする請求項４
記載の自己清浄品。5. The lighting device is a reflector, a cover or an umbrella part, the range hood is a filter, a hood or a fan part, the kitchen accessory is a table, a cupboard, a wall, a tile or a ceiling part, and the toilet accessory is Wall, toilet seat or toilet,
The bathroom accessories are a bathtub, a wall, a tile part or a ceiling part, the storage device is a shoe box, a closet, a closet, an underfloor storage box, a rice box, a cooler box or a trash box, and the building material is an exterior material, a brick, a partition, a bran, Shoji or floor, the bedding is a futon, a pillow or blanket, the home appliances are TVs, videos,
Stereo, cooler, stove, vacuum cleaner, washing machine, refrigerator, electric kettle, kotatsu, rice cooker, shaver, waste shaving machine or dryer, the cooking utensil, tea jar or frying pan, the tableware is a cup, bowl or bowl. ,
The automobile is a window glass or a handle, the portable item is a hat, a bag, a clock, a fishing rod, shoes, dentures or contact lenses, the clothing is a uniform, a suit, socks, underwear, a coat, a jumper, a sweater, a sweatshirt, a shirt, trousers, Kimono, skirt, stockings or tights, the purification equipment is wastewater treatment equipment, septic tank, air purifier, water purifier or garbage disposal, the water tank is a pool, ornamental fish tank,
5. A livestock tank or a pond making stone, and the animal product is a pet house, dog house or birdcage.
Self-cleaning product as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8003960A JPH09192496A (en) | 1996-01-12 | 1996-01-12 | Photocatalyst and self-cleaning articles having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8003960A JPH09192496A (en) | 1996-01-12 | 1996-01-12 | Photocatalyst and self-cleaning articles having the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09192496A true JPH09192496A (en) | 1997-07-29 |
Family
ID=11571669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8003960A Pending JPH09192496A (en) | 1996-01-12 | 1996-01-12 | Photocatalyst and self-cleaning articles having the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09192496A (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11197015A (en) * | 1998-01-14 | 1999-07-27 | Toshiba Home Techno Corp | Domestic apparatus used indoors |
| KR100281487B1 (en) * | 1998-05-20 | 2001-02-15 | 손재익 | Nickel / Titania mixed photocatalyst and its manufacturing method, glass bead carrier coated with glass catalyst and its coating method |
| WO2001032582A1 (en) * | 1999-11-04 | 2001-05-10 | Johannes Jager | External building material for constructions |
| JP2002254074A (en) * | 2001-02-28 | 2002-09-10 | Toray Ind Inc | Water purifier |
| JP2002361097A (en) * | 2001-06-12 | 2002-12-17 | Furukawa Co Ltd | Visible light excitation type titanium dioxide photocatalyst and method for producing the same |
| FR2831467A1 (en) * | 2001-10-29 | 2003-05-02 | Sicat | PHOTOCATALYST AND PROCESS FOR PURIFYING GASEOUS EFFLUENTS BY PHOTOCATALYSIS OF OXIDATION |
| US6576344B1 (en) | 1998-09-30 | 2003-06-10 | Nippon Sheet Glass Co., Ltd. | Photocatalyst article, anti-fogging, anti-soiling articles, and production method of anti-fogging, anti-soiling articles |
| JP2004043282A (en) * | 2002-05-20 | 2004-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing titanium oxide |
| KR100440785B1 (en) * | 2001-10-24 | 2004-07-21 | 오승훈 | Photocatalyst optical thin films activated in the visible light and their preparations |
| JP2005507974A (en) * | 2001-07-13 | 2005-03-24 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | Visible light-responsive photoactive coating, coated article, and method for producing the same |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
| JP2006021112A (en) * | 2004-07-07 | 2006-01-26 | Kyoto Univ | Ultraviolet and visible ray responsive titania based photocatalyst |
| JP2006198465A (en) * | 2005-01-18 | 2006-08-03 | Nippon Shokubai Co Ltd | Photocatalyst and its production method |
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| JP2008126121A (en) * | 2006-11-20 | 2008-06-05 | Nissan Motor Co Ltd | Photocatalyst system for automobile |
| WO2009116627A1 (en) * | 2008-03-21 | 2009-09-24 | 国立大学法人東京大学 | Photocatalyst material, method for decomposition of organic material, interior member, air purification device, and apparatus for production of oxidizing agent |
| US7666385B2 (en) | 2004-02-20 | 2010-02-23 | Industrial Technology Research Institute | Nanostructured zinc oxide photocatalyst for visible light and manufacturing method of the same |
| US7846864B2 (en) * | 2006-02-17 | 2010-12-07 | Samsung Electronics Co., Ltd. | Photocatalyst materials having semiconductor characteristics and methods for manufacturing and using the same |
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-
1996
- 1996-01-12 JP JP8003960A patent/JPH09192496A/en active Pending
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|---|---|---|---|---|
| JPH11197015A (en) * | 1998-01-14 | 1999-07-27 | Toshiba Home Techno Corp | Domestic apparatus used indoors |
| KR100281487B1 (en) * | 1998-05-20 | 2001-02-15 | 손재익 | Nickel / Titania mixed photocatalyst and its manufacturing method, glass bead carrier coated with glass catalyst and its coating method |
| US6576344B1 (en) | 1998-09-30 | 2003-06-10 | Nippon Sheet Glass Co., Ltd. | Photocatalyst article, anti-fogging, anti-soiling articles, and production method of anti-fogging, anti-soiling articles |
| WO2001032582A1 (en) * | 1999-11-04 | 2001-05-10 | Johannes Jager | External building material for constructions |
| JP2002254074A (en) * | 2001-02-28 | 2002-09-10 | Toray Ind Inc | Water purifier |
| JP4686872B2 (en) * | 2001-02-28 | 2011-05-25 | 東レ株式会社 | Water purifier |
| JP2002361097A (en) * | 2001-06-12 | 2002-12-17 | Furukawa Co Ltd | Visible light excitation type titanium dioxide photocatalyst and method for producing the same |
| JP2005507974A (en) * | 2001-07-13 | 2005-03-24 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | Visible light-responsive photoactive coating, coated article, and method for producing the same |
| US7951327B2 (en) | 2001-07-30 | 2011-05-31 | Carrier Corporation | Photocatalytic air purifier for a fan coil unit |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
| US7758821B2 (en) | 2001-07-30 | 2010-07-20 | Carrier Corporation | Modular photocatalytic air purifier |
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| US7435702B2 (en) * | 2001-10-29 | 2008-10-14 | Sicat | Photocatalyst and process for purifying gas effluent by photocatalytic oxidation |
| WO2003037509A1 (en) * | 2001-10-29 | 2003-05-08 | Sicat | Photocatalyst and a method of purifying gaseous effluents |
| FR2831467A1 (en) * | 2001-10-29 | 2003-05-02 | Sicat | PHOTOCATALYST AND PROCESS FOR PURIFYING GASEOUS EFFLUENTS BY PHOTOCATALYSIS OF OXIDATION |
| JP2004043282A (en) * | 2002-05-20 | 2004-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing titanium oxide |
| US7666385B2 (en) | 2004-02-20 | 2010-02-23 | Industrial Technology Research Institute | Nanostructured zinc oxide photocatalyst for visible light and manufacturing method of the same |
| US7153808B2 (en) | 2004-07-07 | 2006-12-26 | Kyoto University | Ultraviolet and visible-light-sensitive titania-based photocatalyst |
| JP4576526B2 (en) * | 2004-07-07 | 2010-11-10 | 国立大学法人京都大学 | Ultraviolet and visible light responsive titania photocatalyst |
| JP2006021112A (en) * | 2004-07-07 | 2006-01-26 | Kyoto Univ | Ultraviolet and visible ray responsive titania based photocatalyst |
| JP2006198465A (en) * | 2005-01-18 | 2006-08-03 | Nippon Shokubai Co Ltd | Photocatalyst and its production method |
| JP2006241474A (en) * | 2005-02-28 | 2006-09-14 | Central Res Inst Of Electric Power Ind | Heat-resistant member |
| US7846864B2 (en) * | 2006-02-17 | 2010-12-07 | Samsung Electronics Co., Ltd. | Photocatalyst materials having semiconductor characteristics and methods for manufacturing and using the same |
| JP2008126121A (en) * | 2006-11-20 | 2008-06-05 | Nissan Motor Co Ltd | Photocatalyst system for automobile |
| US8536084B2 (en) | 2008-03-21 | 2013-09-17 | The University Of Tokyo | Photocatalyst material, method for decomposition of organic material, interior member, air purification device, and apparatus for preparation of oxidizing agent |
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| JP2009226299A (en) * | 2008-03-21 | 2009-10-08 | Univ Of Tokyo | Photocatalytic material, method for decomposing organic material, interior component, air cleaner, oxidizing agent manufacturing apparatus |
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| JP2012016697A (en) * | 2010-06-10 | 2012-01-26 | Mitsui Chemicals Inc | Photocatalyst and method of manufacturing the same |
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